Not authentically extension, after installation

Install

asterisk 10
frepbx 2.10
centos 6.2

I am submitting this next issue, the extensions do not want to authenticate sending me this message

chan_sip.c: 26453 handle_request_register: Registration from '2020 sip:[email protected]:5060 'failed for ‘190 .1.165.176:8306’ - Wrong password, and the password of password biem’m setting, I can alguiem help I give him access to the server please